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<div class="textblock"><code>#include &quot;<a class="el" href="../../d0/d9c/core_2include_2opencv2_2core_8hpp.html">opencv2/core.hpp</a>&quot;</code><br />
<code>#include &lt;vector&gt;</code><br />
<code>#include &lt;deque&gt;</code><br />
<code>#include &lt;string&gt;</code><br />
</div><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d0/d4f/classcv_1_1text_1_1ERFilter_1_1Callback.html">cv::text::ERFilter::Callback</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight"><a class="el" href="../../d0/d4f/classcv_1_1text_1_1ERFilter_1_1Callback.html" title="Callback with the classifier is made a class. ">Callback</a> with the classifier is made a class.  <a href="../../d0/d4f/classcv_1_1text_1_1ERFilter_1_1Callback.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/def/classcv_1_1text_1_1ERFilter.html">cv::text::ERFilter</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Base class for 1st and 2nd stages of Neumann and Matas scene text detection algorithm <a class="el" href="../../d0/de3/citelist.html#CITEREF_Neumann12">[183]</a>. :  <a href="../../da/def/classcv_1_1text_1_1ERFilter.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../db/d20/structcv_1_1text_1_1ERStat.html">cv::text::ERStat</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">The <a class="el" href="../../db/d20/structcv_1_1text_1_1ERStat.html" title="The ERStat structure represents a class-specific Extremal Region (ER). ">ERStat</a> structure represents a class-specific Extremal Region (ER).  <a href="../../db/d20/structcv_1_1text_1_1ERStat.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="memdesc:d2/d75/namespacecv"><td class="mdescLeft">&#160;</td><td class="mdescRight">"black box" representation of the file storage associated with a file on disk. <br /></td></tr>
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Enumerations</h2></td></tr>
<tr class="memitem:ga4393eddae65e48ed93934c409bd99126"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom">{ <br />
&#160;&#160;<a class="el" href="../../da/d56/group__text__detect.html#gga4393eddae65e48ed93934c409bd99126a79e06bd9ad5b17411581ac430f805e66">cv::text::ERFILTER_NM_RGBLGrad</a>, 
<br />
&#160;&#160;<a class="el" href="../../da/d56/group__text__detect.html#gga4393eddae65e48ed93934c409bd99126a00b4e765bdc40567ad70beb7df464e06">cv::text::ERFILTER_NM_IHSGrad</a>
<br />
 }<tr class="memdesc:ga4393eddae65e48ed93934c409bd99126"><td class="mdescLeft">&#160;</td><td class="mdescRight">computeNMChannels operation modes  <a href="../../da/d56/group__text__detect.html#ga4393eddae65e48ed93934c409bd99126">More...</a><br /></td></tr>
</td></tr>
<tr class="separator:ga4393eddae65e48ed93934c409bd99126"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gac71e4c8addcf8f6dabc9b6da401d5eb9"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#gac71e4c8addcf8f6dabc9b6da401d5eb9">cv::text::erGrouping_Modes</a> { <br />
&#160;&#160;<a class="el" href="../../da/d56/group__text__detect.html#ggac71e4c8addcf8f6dabc9b6da401d5eb9a27297f8181275dff67535f204e4bdd62">cv::text::ERGROUPING_ORIENTATION_HORIZ</a>, 
<br />
&#160;&#160;<a class="el" href="../../da/d56/group__text__detect.html#ggac71e4c8addcf8f6dabc9b6da401d5eb9aa88b048d788f8f61bcec6c478078e3c4">cv::text::ERGROUPING_ORIENTATION_ANY</a>
<br />
 }<tr class="memdesc:gac71e4c8addcf8f6dabc9b6da401d5eb9"><td class="mdescLeft">&#160;</td><td class="mdescRight">text::erGrouping operation modes  <a href="../../da/d56/group__text__detect.html#gac71e4c8addcf8f6dabc9b6da401d5eb9">More...</a><br /></td></tr>
</td></tr>
<tr class="separator:gac71e4c8addcf8f6dabc9b6da401d5eb9"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga23fdd9364be7b67d104f814dd679fcde"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#ga23fdd9364be7b67d104f814dd679fcde">cv::text::computeNMChannels</a> (InputArray _src, OutputArrayOfArrays _channels, int _mode=ERFILTER_NM_RGBLGrad)</td></tr>
<tr class="memdesc:ga23fdd9364be7b67d104f814dd679fcde"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compute the different channels to be processed independently in the N&amp;M algorithm <a class="el" href="../../d0/de3/citelist.html#CITEREF_Neumann12">[183]</a>.  <a href="../../da/d56/group__text__detect.html#ga23fdd9364be7b67d104f814dd679fcde">More...</a><br /></td></tr>
<tr class="separator:ga23fdd9364be7b67d104f814dd679fcde"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga34e6b32cc3db805155ab51dcd7bc61d5"><td class="memItemLeft" align="right" valign="top">Ptr&lt; ERFilter &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#ga34e6b32cc3db805155ab51dcd7bc61d5">cv::text::createERFilterNM1</a> (const Ptr&lt; ERFilter::Callback &gt; &amp;cb, int thresholdDelta=1, float minArea=(float) 0.00025, float maxArea=(float) 0.13, float minProbability=(float) 0.4, bool nonMaxSuppression=true, float minProbabilityDiff=(float) 0.1)</td></tr>
<tr class="memdesc:ga34e6b32cc3db805155ab51dcd7bc61d5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Create an Extremal Region Filter for the 1st stage classifier of N&amp;M algorithm <a class="el" href="../../d0/de3/citelist.html#CITEREF_Neumann12">[183]</a>.  <a href="../../da/d56/group__text__detect.html#ga34e6b32cc3db805155ab51dcd7bc61d5">More...</a><br /></td></tr>
<tr class="separator:ga34e6b32cc3db805155ab51dcd7bc61d5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad0dbf50d68acbacfbe466c4bc31cdcd2"><td class="memItemLeft" align="right" valign="top">Ptr&lt; ERFilter &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#gad0dbf50d68acbacfbe466c4bc31cdcd2">cv::text::createERFilterNM1</a> (const String &amp;filename, int thresholdDelta=1, float minArea=(float) 0.00025, float maxArea=(float) 0.13, float minProbability=(float) 0.4, bool nonMaxSuppression=true, float minProbabilityDiff=(float) 0.1)</td></tr>
<tr class="memdesc:gad0dbf50d68acbacfbe466c4bc31cdcd2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Reads an Extremal Region Filter for the 1st stage classifier of N&amp;M algorithm from the provided path e.g. /path/to/cpp/trained_classifierNM1.xml.  <a href="../../da/d56/group__text__detect.html#gad0dbf50d68acbacfbe466c4bc31cdcd2">More...</a><br /></td></tr>
<tr class="separator:gad0dbf50d68acbacfbe466c4bc31cdcd2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga00f010f5b65cc60d1290a76807d39c95"><td class="memItemLeft" align="right" valign="top">Ptr&lt; ERFilter &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#ga00f010f5b65cc60d1290a76807d39c95">cv::text::createERFilterNM2</a> (const Ptr&lt; ERFilter::Callback &gt; &amp;cb, float minProbability=(float) 0.3)</td></tr>
<tr class="memdesc:ga00f010f5b65cc60d1290a76807d39c95"><td class="mdescLeft">&#160;</td><td class="mdescRight">Create an Extremal Region Filter for the 2nd stage classifier of N&amp;M algorithm <a class="el" href="../../d0/de3/citelist.html#CITEREF_Neumann12">[183]</a>.  <a href="../../da/d56/group__text__detect.html#ga00f010f5b65cc60d1290a76807d39c95">More...</a><br /></td></tr>
<tr class="separator:ga00f010f5b65cc60d1290a76807d39c95"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga56f17c714f8403ef00b02022eeebb8a2"><td class="memItemLeft" align="right" valign="top">Ptr&lt; ERFilter &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#ga56f17c714f8403ef00b02022eeebb8a2">cv::text::createERFilterNM2</a> (const String &amp;filename, float minProbability=(float) 0.3)</td></tr>
<tr class="memdesc:ga56f17c714f8403ef00b02022eeebb8a2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Reads an Extremal Region Filter for the 2nd stage classifier of N&amp;M algorithm from the provided path e.g. /path/to/cpp/trained_classifierNM2.xml.  <a href="../../da/d56/group__text__detect.html#ga56f17c714f8403ef00b02022eeebb8a2">More...</a><br /></td></tr>
<tr class="separator:ga56f17c714f8403ef00b02022eeebb8a2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gac4abe0243775e0d1a871a7d85fde0198"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#gac4abe0243775e0d1a871a7d85fde0198">cv::text::detectRegions</a> (InputArray image, const Ptr&lt; ERFilter &gt; &amp;er_filter1, const Ptr&lt; ERFilter &gt; &amp;er_filter2, std::vector&lt; std::vector&lt; Point &gt; &gt; &amp;regions)</td></tr>
<tr class="separator:gac4abe0243775e0d1a871a7d85fde0198"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gacead6485d0966726892094fc4aaf9dc6"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#gacead6485d0966726892094fc4aaf9dc6">cv::text::detectRegions</a> (InputArray image, const Ptr&lt; ERFilter &gt; &amp;er_filter1, const Ptr&lt; ERFilter &gt; &amp;er_filter2, std::vector&lt; Rect &gt; &amp;groups_rects, int method=ERGROUPING_ORIENTATION_HORIZ, const String &amp;filename=String(), float minProbability=(float) 0.5)</td></tr>
<tr class="memdesc:gacead6485d0966726892094fc4aaf9dc6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Extracts text regions from image.  <a href="../../da/d56/group__text__detect.html#gacead6485d0966726892094fc4aaf9dc6">More...</a><br /></td></tr>
<tr class="separator:gacead6485d0966726892094fc4aaf9dc6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga6299380bbb9141488220bdee62b62cd1"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#ga6299380bbb9141488220bdee62b62cd1">cv::text::erGrouping</a> (InputArray img, InputArrayOfArrays channels, std::vector&lt; std::vector&lt; ERStat &gt; &gt; &amp;regions, std::vector&lt; std::vector&lt; Vec2i &gt; &gt; &amp;groups, std::vector&lt; Rect &gt; &amp;groups_rects, int method=ERGROUPING_ORIENTATION_HORIZ, const std::string &amp;filename=std::string(), float minProbablity=0.5)</td></tr>
<tr class="memdesc:ga6299380bbb9141488220bdee62b62cd1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Find groups of Extremal Regions that are organized as text blocks.  <a href="../../da/d56/group__text__detect.html#ga6299380bbb9141488220bdee62b62cd1">More...</a><br /></td></tr>
<tr class="separator:ga6299380bbb9141488220bdee62b62cd1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga807dea4f63f6e2b59c9ac22d35e23926"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#ga807dea4f63f6e2b59c9ac22d35e23926">cv::text::erGrouping</a> (InputArray image, InputArray channel, std::vector&lt; std::vector&lt; Point &gt; &gt; regions, std::vector&lt; Rect &gt; &amp;groups_rects, int method=ERGROUPING_ORIENTATION_HORIZ, const String &amp;filename=String(), float minProbablity=(float) 0.5)</td></tr>
<tr class="separator:ga807dea4f63f6e2b59c9ac22d35e23926"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga8a0e90a70de747b993be34ed7933ef53"><td class="memItemLeft" align="right" valign="top">Ptr&lt; ERFilter::Callback &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#ga8a0e90a70de747b993be34ed7933ef53">cv::text::loadClassifierNM1</a> (const String &amp;filename)</td></tr>
<tr class="memdesc:ga8a0e90a70de747b993be34ed7933ef53"><td class="mdescLeft">&#160;</td><td class="mdescRight">Allow to implicitly load the default classifier when creating an <a class="el" href="../../da/def/classcv_1_1text_1_1ERFilter.html" title="Base class for 1st and 2nd stages of Neumann and Matas scene text detection algorithm ...">ERFilter</a> object.  <a href="../../da/d56/group__text__detect.html#ga8a0e90a70de747b993be34ed7933ef53">More...</a><br /></td></tr>
<tr class="separator:ga8a0e90a70de747b993be34ed7933ef53"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga7a7555ebd0850765e1cb09d322235cf8"><td class="memItemLeft" align="right" valign="top">Ptr&lt; ERFilter::Callback &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#ga7a7555ebd0850765e1cb09d322235cf8">cv::text::loadClassifierNM2</a> (const String &amp;filename)</td></tr>
<tr class="memdesc:ga7a7555ebd0850765e1cb09d322235cf8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Allow to implicitly load the default classifier when creating an <a class="el" href="../../da/def/classcv_1_1text_1_1ERFilter.html" title="Base class for 1st and 2nd stages of Neumann and Matas scene text detection algorithm ...">ERFilter</a> object.  <a href="../../da/d56/group__text__detect.html#ga7a7555ebd0850765e1cb09d322235cf8">More...</a><br /></td></tr>
<tr class="separator:ga7a7555ebd0850765e1cb09d322235cf8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaa40b490a66fa21eb1d89163202f69c86"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d56/group__text__detect.html#gaa40b490a66fa21eb1d89163202f69c86">cv::text::MSERsToERStats</a> (InputArray image, std::vector&lt; std::vector&lt; Point &gt; &gt; &amp;contours, std::vector&lt; std::vector&lt; ERStat &gt; &gt; &amp;regions)</td></tr>
<tr class="memdesc:gaa40b490a66fa21eb1d89163202f69c86"><td class="mdescLeft">&#160;</td><td class="mdescRight">Converts <a class="el" href="../../d3/d28/classcv_1_1MSER.html" title="Maximally stable extremal region extractor. ">MSER</a> contours (vector&lt;Point&gt;) to <a class="el" href="../../db/d20/structcv_1_1text_1_1ERStat.html" title="The ERStat structure represents a class-specific Extremal Region (ER). ">ERStat</a> regions.  <a href="../../da/d56/group__text__detect.html#gaa40b490a66fa21eb1d89163202f69c86">More...</a><br /></td></tr>
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